in the spotlight-latest post !


Why are automotive sensors so important today

February 23, 2017

Before the use of computerized controls, fixing an automobile was straightforward and logical. Gasoline engines need the proper fuel and air mixture, compression to squeeze the mixture together, and a spark plug to ignite the mixture. In the old days, if you had fuel, spark and you were somewhere close […]

engine testing

Fuel Pressure Regulator

Fuel pressure regulator FAQ

November 12, 2016

A fuel pressure regulator is an integral part of a vehicle’s fuel system. Most engines use a fuel pressure regulator now and there are things that can go wrong with them. Your fuel system is designed to work within a specific range of pressure. If the pressure is out of this […]


Oxygen Sensor-Should you Replace It ?

December 1, 2016

Replacement of good oxygen sensors is one of the common mistakes made by seasoned mechanics and DIY mechanics when tackling rich or lean diagnostic codes. Oxygen Sensor-Should you Replace It ? Before replacing any of these components, you must first find the real problem that caused the failure. The purpose […]

compression tester

How to do a compression test

December 3, 2016

A Compression test is a good way to measure the condition of the rings, cylinders, and valves. If your engine is running rough or is lacking power consider doing a compression test. Most manufacturers and technicians believe it is important to perform a compression test every time a tune-up is […]

EGR Valve Blockage

Exhaust Gas Recirculation Valve- (EGR)- FAQ

November 16, 2016

The Exhaust Gas Recirculation Valve or (EGR) Valve as most refer to it is designed to cool exhaust gas by burning exhaust for a second time within the intake system. This result is the reduction of nitrogen oxide emissions. Recirculation of the exhaust leads to a gradual accumulation of carbon particles […]


Cylinder power balance testing made easy

October 27, 2016

Every engine will experience an occasional misfire and is considered normal.  Misfires can be fairly random and if spaced far enough apart, they should not cause any harm. A frequent or steady misfire will cause a sharp rise in unburned hydrocarbon (HC) emissions. As a result you could see a noticeable […]

Engine will not crank or start

Engine will Not Crank or Start

December 15, 2016

Engine will Not Crank or Start-What could be wrong? This is usually one of the easiest problems to test and solve. But first you need to get over the initial ‘Why me’ frustration. To find out what’s going on, you will need to analyze the situation. If the engine will not […]

engine noises

engine knocking

Engine Knocking Pinging Rattling

January 27, 2017

If your engine makes an annoying knocking, pinging or rattling sound when you accelerate or work your engine hard with a load – like driving uphill, passing a slowpoke or towing a trailer – then you’re probably experiencing spark knock. (engine knocking) It’s not necessarily a problem with your fuel […]

thrust bearing

Crankshaft Thrust Bearing Failure – Causes & Remedies

December 13, 2015

For years both transmission and engine rebuilders have struggled at times to determine the cause of crankshaft thrust bearing failures. In most instances, all of the facts concerning the situation are not revealed at the onset of the failure. This has led to each party blaming the other for the failure based […]

bottom end

cylinder heads

engine rebuilding

head gaskets



  • Low or high oil pressure
    Low or high oil pressure- What is better- FAQ A customer changes his brand of oil and then complains of low oil pressure. Is this perception or reality and is low oil pressure bad? Why don’t [...]
  • contaminated oil
    Professional Installers offer the following information on clean engine coolant from the lubrication system. The following information applies only to certain situations and is not applicable for all engines. These procedures may be attempted if no [...]
  • Antifreeze
    Antifreeze in Oil – What Can it Do ? Antifreeze in Oil can be Catastrophic if not dealt with quickly. Organic acids may form as a result of antifreeze oxidizing: Glycolic acid Oxalic acid Formic [...]

news in pictures

editor’s picks

  • contaminated oil
    White stuff under my oil cap. You take the cap off of your valve cover to top off your oil or fill the crank case. You find a white milky creamy stuff coating the underside of the [...]
  • rad cap
    Do you have a Bad radiator cap The radiator cap does several things. It seals the system against the outside world (main seal function) It will keep the system pressurized when needed, also rasing the [...]
  • rear-seal-leaking
    It has been determined that 90% of all rear main seal oil leak complaints checked in the last five years are leaks in the pan gasket, rocker covers, side covers, etc., and are not leaking [...]
  • Intake Manifold
    Engine Misfire or Rough Idle on GM 4.8L, 5.3L, 6.0L is becoming more common and getting harder to diagnose. With this getting worse it is also setting off MIL illuminated with a stored code of P0300. [...]
  • spark-plug condition
    If you are able to read a spark plug it can be a valuable tuning aid. An experienced engine tuner can determine a great deal about the engine’s overall operating condition by examining the insulator [...]